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that? make sense? lee, question. when you reshape it, though, you aren't changing the density of the clay by itself. so what makes it less dense overall? so that-- yeah. we haven't really talked about density yet, have we? but it turns out-- now, i don't change the density of the clay. but i do, nevertheless, when it's submerged like that, get a big air pocket. so as far as the water is concerned, there is something with less-- something of less density when you consider the space that the air pocket takes up. so counting this-- like a hollow piece of iron, of course, will float, see, because it's got the air inside. so the overall density is less. so i can say the overall effective density if you count from, you know, counting the air that's trapped in there. not trapped in there but which just support it, kinda something like that. let's talk about density. make that a little clearer, i hope. here's an object. i'm not gonna tell you what the object is 'cause, you know, we don't care what the object is. but the object in there is taking up that much water. we say it's displac
that there is nothing like that, that it is slow, sustained behavior change that works best. good morning, uci weight management program. may i help you? that is the goal of the uc irvine weight management program: encouraging and supporting behavior changes that will result in sustained weight loss. wonderful... well, we have a couple of program options. do you have an idea about how much weight you're interested in losing? linda gigliotti: when people inquire about our program, we invite them to come in for an information session where we can have an opportunity to explore a little bit of their goals and history in terms of weight loss, and management of that loss, but also so we can explore program options. there's not one strategy that works for everybody in terms of losing weight. now, you've tried losing weight before? i have, but it's been kind of a roller coaster for me. okay, so we want to stop the roller coaster then. ralph cygan: when patients come to you for weight loss, many have a shortterm orientation. they want to go on a program and then resume their prior lifestyle. clearly you're n
the groundbreaking novel, published in 1958, had changed him. writinge process of "things fall apart, >> what it changed my life. because i had to invent the language of that story. something that anybody was teaching anywhere. the conversation between evo and english. make it up as i went along. >> chinua achebe died in boston after a brief illness. and those are some of the headlines. this is "democracy now!," democracynow.org, the war and peace report. i'm amy goodman. of the financial world are on the small mediterranean island of cyprus today. the government of cyprus has brokered a last-ditch $13 billion bailout deal with european officials to stave off the collapse of its banking sector. under the deal, all bank deposits above approximately $130,000 will be frozen and used to help pay off the banking sector's debts. this will result in a specially heavy losses for foreign depositors at the mediterranean island's banks, many of which are russian. in addition, cyprus's second largest bank will be shut down. protesters have described the deal as an economic world war iii. some say cyprus
's changing state. it's changing from the liquid state to the gaseous state, okay? and we call that what? begin with ev? evaporation. evaporation, that's right. and we're gonna be learning that evaporation is a cooling process. you know, sometimes you're swimming and you come out and you're all wet, a little breeze come by and you feel kinda chilly. but if no breeze comes by, you don't feel so chilly. and what's going on? when that breeze comes by, what happens to the water on your body? evaporates. it evaporates. when it evaporates, how does your body feel? begin with a c. - cool. - cool. now, we're gonna ask the question hc. why is it that evaporation is a cooling process? and we can reason that out if we think small. see this glass of water here? do you think all the water molecules in that glass are moving at the same speed all the time? how many say, "oh, yes. at exactly the same speed all the time." stand up. nobody. how many say, "well, there's a whole distribution of speeds "and the average that relates to that which we call temperature"? show of hands. yay, we got the idea. but
you to stop what you're doing. at 15 minutes, i'm gonna change out that cassette. okay. tracy schilf: we're looking for the results of what the fume exposure is gonna be for his welding process. he's using a... what's called the "rod 4-10," a stainless steel rod, it has some chromium in it, so that's what's gonna be our biggest concern. teresa howe: engineering controls are the primary tactic that we would like to use in occupational health and safety to keep exposures away from the employees. those are methods that we use, or perhaps devices that we use, to actually control the exposure at the point of generation, perhaps; isolate or separate the employee from the exposure; engineer the release of the hazardous material. for example, engineer that out of the process, so that we just don't have the exposures. for many reasons, howe considers personal protective equipment the least desirable line of defense. howe: we reallhate to have to rely on these devices. they can be, you know, they can fail. they can come from the manufacturer with holes in them. a glove with a... maybe a small
, "why i support same sex marriage as a civil right, but not as a strategy to achieve structural change." the piece drew so much traffic he crashed his server twice. he senior partner of the grassroots social justice think tank. his work on same-sex marriage extends back into the 1990's when the issue is part of the focus of the national gay and lesbian task force. ,arc solomon is still with us one of the leading campaigns to overturn the defense america act. scot, your thoughts on these historic two days in the supreme court? >> i find it is very exciting. i'd like many other people watch on tv with bated breath. i have been in a 19-year partnership. my partner is everything. we have been through sickness and health, richer and poorer and face the same struggles that couples struggle with. i'm hoping we get a good outcome here. watching this case is a fascinating study on how this issue has moved since i first encountered it in the 1990's when the task force to me to a way to help decapolis they're fighting on this issue. -- set me to hawaii to help the cabalists they're fighting on th
of the wave is gonna be the same." yay, that's right. the speed of the wave doesn't change. what does change, gang? how frequently that wave encounters you as different, yeah? so i can get a different frequency. when i put my hand here, higher frequency or lower? - higher. - do you see it? over here. that change in frequency due to motion of the source or the receiver is what we call the--named after a person. effects. [laughter] very good. it is called, it's a doppler effect. that's right. the doppler effect is the change of frequency when something moves toward you or away from you, that sort of thing. the change of frequency due to motion. doppler effect. let's suppose the bug swims faster and faster. and other bug generates waves that's sort of like this. i got a question for you, gang. how fast is that bug swimming compared to wave speed? same, same. what do you say? - same, same. - same, same. isn't that right? the bug is going as fast as the waves it produces. now, you say to the bug, "hey, mr. bug go a little faster, honey." and the bug--that bug has got a big problem, because what's
the kings ? to answer such questions, archaeologists discuss their ideas of political change. which says, here's the resolution, but you've got no enforcement. who's the arbitrator ? the arbitrator is the chief. keach: everyone in this group is guided by the same basic model of political evolution. it says that as a society evolves, fewer and fewer people control the wealth, and the rest provide the labor. as distinct classes emerge, rulers centralize political power. political organization changes as populations grow. small bands and tribes evolve into chiefdoms, and finally into states. some states, like ancient rome, become huge empires. these archaeologists want to find out just how far political evolution proceeded in copan. and they want to know why it stopped. to discover the roots of that evolution, two archaeologists begin a journey in search of the very first copan residents. rebecca storey is a physical anthropologist -- an expert on human skeletons. storey is joined by archaeologist dolph widmer. both are from the university of houston. as they seek the roots of maya leadersh
're gonna come back to these cans again when we talk about condensation, water changing to vapor and vapor changing back to water, that--those ideas. but nevertheless, there is an enormous pressure due to the atmosphere and i think you can see that now. isn't it nice that you guys have air inside you? what happens all of a sudden someone takes the air outside of you? what are you-- what are you going to look like? here you are, here gang. isn't it nice you've got the air inside you too, yeah, okay? okay. if i had a bamboo pole, a bamboo pole right here and it went up about 30 kilometers and that bamboo pole was one square centimeter in area. and i considered the mass of all the air that would fill up that bamboo pole, you know, what all of that mass would be? it would be one kilogram, one square centimeter up about 30 kilometers will be one kilogram of air. so that 1 kilogram pushes down with a weight. and it pushes down with a weight of 10 newtons. so it turns out the pressure due to the atmosphere here at sea level is 10 newtons for every square centimeter. and we're talking about si uni
expand. guess which expands more, a gas or a liquid for the same change in temperature? gas. well, it turns out the gas. i can take a balloon and hold it over a stove. you could see that thing grow. if i take a a gallon of water and hold it over a stove, you don't see it grow very much. it does. and how about solids, how do they expand compared to gases? not so much, but they expand nevertheless. so liquids expand because liquids expand when they're heated. you could make thermal meters. thermal meters. let me show you an example of one. you might do this in the lab part of the class. you might have a glass tube like this. and in that glass tube, you have some mercury or some alcohol, colored alcohol. you have it in here, say, like that, okay? and it might come up to this particular level. now, what you do as you put that thermal meter, which is a hunk of glass about this long with a reservoir at the bottom. you put that in a bath of ice cubes that are melting, melting ice. when you do that, the temperature of this becomes the same as the temperature of this because the slow movin
. but it is also a psychoactive drug. it produces changes in brain chemistry and other physiology that... is toxic to the individual. narrator: researchers are looking specifically at the effect marijuana has on brain receptors. dr. miotto: there is a large area of study looking at memory impairment with marijuana, and what happens when you disturb this receptor by smoking marijuana. it's a debated area: does marijuana impair motivation? many people think of their "deadhead" friends who never finished college, or even started and have been smoking every day. that's harder to tease out if that was marijuana or some other factor. narrator: compared, are more obvious, acss all popations of people. dr. miotto: we see a plight in urban america where crack cocaine is being sold on street corners by children to children. cocaine is a very powerfully reinforcing drug, and people chase the high. they use it, but they want more and more and more. cocaine is a stimulant drug, so individuals will feel euphoric. they'll feel energized, awake, alert, excited. they'll have great self confidence in their abiliti
millennium a change took place. the main focus shifted from the sky to the netherworld because egyptians believed that there, the actual regeneration, the coming back to life took place in the world of osiris. (narrator) osiris, ruler and judge of the dead in the underworld... a powerful figure in ancient egyptian cosmology... his origins rooted in an ancient legend. through some horrible machinations he was killed and torn asunder and brought back to life as the world's first mummy, and magically brought back through the help of his sister and wife, isis. osiris, because he was brought back from the dead and because he was put back from pieces and made to live again, became the symbol of regeneration and particularly was associated with the dead and with the land of the west, the place where most of the burials a, incling th and valley of the kings. west, (narrator) the cosmological landscape of the life after death was rich with deities-- hundreds in number. the falcon-headed horus god of the sky and the embodiment of divi kingship. hathor, sky goddess,-- protector of the sun at night.
discovery, this time at palenque, further changed modern conceptions of the maya. mexican archaeologist alberto z uncovered a tomb buried deep within the temple of inscriptions. a crypt cut deep into the bedrock beneath the pyramid contained a sarcophagus. (mary miller) i think we can imagine his heirs bringing him up here wrapped in a shroud, taking him all the way down through those 13 vaults, down into that incredible chamber, setting him into the sarcophagus, putting the stone on place, making all the offerings, seing the doorway, sacrificial victims, a kind of silence for all time. (narrator) rubble filled the eighty-foot interior staircase. when alberto ruz finally reached the tomb, whicok his tm four years to eavate, he found the skeleton of a man. his corpse had been adorned with jade jewelry and a mosaic mask of jade, shell, and obsidian. whose tomb was this? when was he buried? the answer lay in the undeciphered inscriptions. the enigmatic hieroglyphs, the written language of the maya, had eluded and intrigued scholars since the 16th century. missionaries like diego de landa t
. in 1428, however, things changed dramatically. three of these states overthrow their lord, form a military alliance, and embark on a career of conquest that is to carry them over all of mesoamerica. keach: within less than a century, the aztecs had conquered hundreds of formerly independent states, established provincial capitals, and controlled a population of five to six million people. the center of the aztec empire was the city of tenochtitlan, an island in the middle of an extensive lake system. today, tenochtitlan is buried in 1978, workers digging ditches for electric cable hit something hard. it turned out to be a huge stone sculpture depicting an aztec goddess. excavations around the sculpture eventually led to the discovery of a large complex of buildings directly below the streets of mexico city. what had been uncovered were the remains of the templo mayor, the religious heart of the aztec empire. nested inside the final building were the ruins of six earlier structures. one of the earliest was an almost complete temple, including a sculpture which once held the hearts of sacrif
uncovered at magnificent ruins like palenque in northern mexico began to change this notion of a peaceful maya. archaeologists investigated a structure known as the "temple of the inscriptions." the building's upper level seemed imposingly solid. but beneath it, archaeologists discovered a hidden staircase. it had been deliberately blocked with rubble in ancient times. it took three years to clear the debris. a hundred feet down, at the base of the staircase, lay one of the most magnificent maya tombs ever found. at its heart lay a limestone sarcophagus. might these images carved on its surface reveal more about the ancient grave site ? archaeologist peter matthews. in 1952, the hieroglyphics could not be read either in this tomb inscription or anywhere else at palenque, apart from the dates. and it was considered at that stage that most of the burials that were dug up were those of priests. keach: the burial itself was proof of the extraordinary power and wealth of the deceased. the entire temple had been constructed around his elaborate tomb. but who was buried within ? a jade portrait
, if a child chooses to skip his snack and then changes his mind at the last minute, what would you do? how would you respond? and why? there are no absolutes when working with children, and there's always a place for mercy. but i've learned that helping them stick to decisions once they're made teaches youngsters to make responsible choices. and of course, parents and teachers must never forget that in the real world of children, as in the real world of adults, not everything is a choice. not everything's negotiable. sometimes we just have to say "no" to our children and mean it. woman: here you go. there we are, all right. he's smiling. is that good? yeah, all right. all through. hendrick: the foundation for self-discipline and self-control begins with infancy. what kinds of steps do you think you can take even with infants to promote a child's positive sense of self? steps that, as the child develops, can contribute to maintaining at least some degree of self-discipline and self-control. jack, what are we going to do about a snack today? would you like to be last? no? would you like snac
that won't change state because it turns out the ice coffee, something will happen to it when it gets up to 100 degrees celsius. what will it do? boil. it will start to turn into steam, see. but let's suppose you had like a piece metal. i have this metal here at zero degrees. and i make it twice as hot, twice the internal energy. see if your neighbor knows what would the temperature be in celsius of this piece of iron bar twice as hot as zero degrees. check your neighbor. okay, gang. what's the answer? 273. 273 degrees celsius. does everyone see that? if you don't see that, i think you can see it with this little story. let's consider celsius the village tailor. and celsius is a tailor who has a shop. he makes gowns for graduations. and he has a shop, and he has a ruler here, okay? and his ruler is right against the wall. now, does that ruler have to have readings that go all the way down to the floor? no. it turns out it doesn't because the shortest customer that tailor is gonna have is probably about this high. and the tallest customer is probably about this high. so celsius only need
per hour, then you've got to change seconds to hours and you do that kind of thing in a lot of courses. you have to convert from one to another. but if you have this for example in cycles per second and this in meters, then the speed will be in meters per second. if this is cycles per second or hertz and this is in like, millimeters, then your speed will be in millimeters per second. and it kinda makes sense. but this is the relationship that these are tied together like that which is kinda nice, you know? in general, we just say speed and c was for the speed of light. on the 300,000 kilometers per seconds, is that a convention for the convenience of math or that the actual speed. it's almost that actual speed. it's 299 and i can't remember the numbers, but it's very, very close to 300,000 kilometers per second. yeah, it's not--now, that's rounded off. and you will find that later on in the book, what the presently accepted value is. it's close to that. did you ever wonder about a radio wave, how long maybe the wavelengths might be? the wavelength we saw over here is about less than a
. >> those interested in changing the subject or drowning out the majority of the american people to prevent any of these reforms happening at all. they're doing what they can to make our progress collapse under the weight of fear and frustration or their assumption is people will just forget about it. >> the senate is facing an upcoming vote on the new gun- control law. senate majority leader harry reid has already excluded an assault weapons ban from the overall legislation, but it is still, for a vote as an amendment. defense attorneys for hunger striking prisoners at guantanamo or to some military officials of imposing harsh conditions in a bid to halt their protests. an emergency motion filed in federal court says guards or denying prisoners water and keeping camp to butchers extremely frigid to increase their discomfort. the prisoners have refused food for nearly two months over intrusive searches on the continued detention without charge. at least three prisoners were hospitalized for dehydration and earlier this week. the allegations come as the red cross has become a fact-finding mi
of equipment, and we should try to keep equipment exciting by changing it frequently or changing its location. let's review what we've learned about fostering creativity in our children. we know that creativity is important because it helps our children express and cope with their feelings. creative experiences help children's mental development and problem-solving skills. creativity helps children experience and celebrate their own diversity, uniqueness, and individuality. and we've learned how essential and important play is in fostering creative development. there is much we can do to foster children's creativity. for example, we can provide children with activities that are based on children's own ideas and personal interests. we can offer children a wide range of creative materials, equipment, and experiences, and we can allow children lots of time to pursue their ideas and explore materials. we've also learned several teaching techniques and methods which can be used to help provide support and extend and enhance our children's development of creativity and play. permit frequent opportu
't follow now that expanding things-- --not gonna change or-- well, that--now, to say that you can heat something up and make it expand is one thing. but now we're saying if the air will expand by itself, push outward, when it expands, what happens to the temperature in the middle of that? drop. and that drops. so the reason for it expanding is because it was going from a region of higher pressure to lower pressure? excellent, excellent, excellent. the reason it expands is because the air goes from a region of high pressure, down here, deep, deep down in the bottom of this ocean of air. and when it rises, what's it gonna do? like the balloon, like the fish, like the scuba diver we've all talked about-- these ideas are all connected, gang, huh? and as it goes up, up, up, it's gonna expand. and we learned a new thing today. as it expands, son of a gun, it cools. why does it cool? because the molecules in the middle are making impact with things on the average that are going away. and so they rebound with less, less, less speeds. and the effect is big. i mean, it's quite noticeable. there'
, that water pressure against here depends only on the density of the water, which wouldn't change if boat came by, multiply by the depth of the water. so the pressure is not very deep down here at the board to keep getting less, less, less. so, not very much pressure. pressure depends on depth. where is your blood pressure greater, in your feet or in your ears? feet. how many people do you know with varicose ears? okay? it's the feet. you get more pressure in your feet. why do you have more pressure in your feet? 'cause your feet are deeper, your feet are deeper. how about if you walk on your hands? okay? you look at the veins in your hands, okay? stand on your hands and you see those veins standing way up. hold your hands above your head, you can't see the veins. it turns out the pressure, the blood pressure depends on how deep you are with respect to the pump. the pump's right here, yeah? why is it when you get your blood pressure checked, they put the little doohickey on your arm, right here, right next to the arm, right, the ticker, huh? same depth. so the pressure in your arm here would b
of the united states does not mean the end of the mission or abandonment. our mission is changing, but our commitment is in during. >> within hours of the transfer, secretary of state john kerry appeared alongside president hamid karzai during an unannounced visit to afghanistan. he said the backroom deal protect both u.s. interests in afghan sovereignty. >> as of today, we do not have prisons. what ever is occurring here is under the control of the afghan people and the nuts -- the united states will cooperate with the government of afghanistan. >> john kerry's visit to afghanistan appeared aimed at easing public tensions following allegations of abuses by u.s. special forces in wardak province and president karzai's widely reported suggestion the u.s. is colluding with the taliban. president karzai said monday his words had been misinterpreted. >> the media took that to say that's i say there is a collision. i never used the word collusion between palestine and the u.s., and those were words picked up by the media. >> afghanistan was rocked by explosions today on the second day of john k
that support same-sex marriage. it is a great tide that has changed and even the last 10 years. i think as gerry used to say, the more people that stand up and self identify -- if you remember, really being gay or lesbian you have to self identify. there is no way to pick someone out on the street. it makes all of our straight friends and allies also our supporters, because they see how the defense of marriage act hurts people they know. it is not an abstract issue for them, either. >> how did gerry studds, out in congress? we're talking about this is before barney frank, fellow congressmember from massachusetts, came out. >> gerry was the first openly member of congress but he came out of this controversy in 1983. i think the most important thing of his coming out was in the midst of his controversy -- this controversy, rather than saying his actions were based on alcohol or any other excuses and never people of other members of congress have used over the years, he proudly stood up on the floor of the house and said he was a game man, something that had never been done before. inhink
of children's early education, and that's not going to change. it remains our responsibility to assess the children's ideas and plan ways to develop them. woman: what do you think it smells like? ooh, that smel like seaweed. hendrick: not all learning takes place in the classroom. what do you think is going on on this field trip that is helping make these children so receptive to learning new things? child: it smells nasty. woman: it's nasty? woman: can you see them? what did that snake feel like when you touched him? look. he's going to crawl back under the water bowl, i think. hendrick: field trips like this one are excellent opportunities to learn because they encourage and stimulate the child's sense of wonder and curiosity. child: oh! it's a rock! woman: it's a rock. see? hendrick: one way to maximize the effectiveness of field trips like these is for us to emphasize hands-on experiences and not spend all our time simply telling and showing. woman: do you think they hide in the plants? hendrick: instead, allow plenty of time for the children to make their own observations and ask
.c., perhaps because of environmental change, warfare, or competition from other sites. whatever the cause, the demise of san lorenzo cocid wi the rise of another olmec cter, la venta. cated near theulf coast on high ground surrounded in ancient times by swamps and rivers, la venta floished from about 900 to00 b.c. this hill is actuay a manmade mounta of earth, pack io theshape of pyr. the pyramid is the focus of a who complex of smallerthen mounds, carefully consucted on a north-south axis to form la venta's political and religious center. excavations in the area to the north of the pyramid, led first by stirling in the '40s and later in the 1950s by philip drucker and robert heizer, revealed a ceremonial courtyard encled by hundreds of basalt columns, each weighing close to one ton. burial mound at the north side of the court contained a ba tomb for two high-ranking children. theibos hadisintegrate but their naments main buried beneath e layers of clay, each of a different color, and several more layers of adobe blocks, was a mosaic pavement measurg 15 by 20 feet. its green serpentine st
intends to change that. >> everybody is always so happy when you show up, uh, with the lemons. the smiles on everyone's faces. they're so happy to get them, and, uh--and it's--i can't think of any more fun way to be spending my time these days. >> brought to you by allied insurance, a member of the nationwide family of companies, which also includes nationwide insurance. on your side. >> welcome back to "california country," the show that takes you on an all-expense-paid trip to experience the best-kept secrets of the golden state. >> asparagus thrives in many districts around california, and for 3 generations now, the nichols family has worked passionately to make victoria island farms in holt, just west of stockton, the largest grower of premium asparagus in california. >> this is what we're looking at. this has, uh, been harvested from the field behind me. it's, uh, beautiful-looking straight asparagus. nice big spears, straight, tight tips. uh, really, really nice, quality asparagus. >> the asparagus ferns gather energy and nutrients from the summer sun, then sit dormant in the fall a
. >> make sure they have plenty of water. we usually change it twice, at least twice a day. >> then it's time to harvest the potatoes he planted a few months ago. >> last year, we had a lot of different crops, but we didn't have potatoes. so this season, it was definitely something that i wanted to try. >> he came to the institute from the east coast hoping to become a chef, never realizing he'd end up laboring on a farm, learning first-hand all about farming and growing local produce like squash. these colorful blossoms are harvested as well, even if they're not fully open. >> we have a dish which--it's a squash blossom risotto, and with the open ones, we just kind of stir it into the risotto at the last minute, so it kind of wilts, and it swirls around. >> he's one of about 72 students getting an associate degree at the culinary institute, which claims to be the world's premier culinary college. steve ells, who founded the chain chipotle, graduated from the cia in 1990, and cat cora, known internationally as the only female iron chef on the food network's "iron chef america," also gr
Search Results 0 to 32 of about 33 (some duplicates have been removed)